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Finding the Fourth Proportional to 560,419.42, 773,374.82 and 318,701.96

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Solution

The fourth proportional to 560,419.42, 773,374.82 and 318,701.96 is: 439,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,419.42 : 773,374.82 = 318,701.96 : x
  2. Step 2: Convert to fraction form
    560,419.42/773,374.82 = 318,701.96/x
  3. Step 3: Cross multiply
    560,419.42x = 773,374.82 × 318,701.96
  4. Step 4: Simplify right side
    560,419.42x = 246,476,070,948.65
  5. Step 5: Solve for x
    x = 246,476,070,948.65/560,419.42
  6. Step 6: Final answer
    x = 439,806.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.